Did you know there are over 60,000 Claude Code skills on GitHub? I think many people, including my past self, find it overwhelming and don't know which ones to install.
According to Claude Code itself, I've tested over 560 skills so far. I use about 40 of them daily, while the rest were installed but eventually went unused.
In this article, I've selected 10 skills for those who haven't installed any yet or don't know where to start. Just install these for now! All are free, and all URLs have been verified.
1. superpowers — Highly Recommended
⭐ 109,607
This is a meta-skill that boosts the output quality of Claude Code. Just by installing it, the AI's behavior changes.
It helps with things like:
- Actively using sub-agents
- Preventing it from settling for "code that just barely works"
- Running loops to improve solutions multiple times
- Forcing it to find the root cause when errors occur
It basically doesn't conflict with other skills, so if you're unsure, start with this.
2. planning-with-files — Stop Coding Without a Plan
⭐ 17,032
This skill introduces a Manus-style workflow where you write a plan in Markdown before implementation. Task decomposition, progress management, and decision records are kept in structured files.
The great thing is that context remains even after a /clear because the planning file exists. You can continue work across sessions.
Claude Code's biggest weakness is "forgetting what it was doing halfway through." This skill solves that.
3. gogcli — Operate Gmail, Calendar, and Drive via CLI
⭐ 6,500
This is a CLI tool to operate Google Workspace (Gmail, Calendar, Drive, Contacts) from the terminal. If you tell Claude Code to "make it a skill," you can use it within the environment.
"Tell me today's schedule," "Check unread emails," "Upload this file to Drive." You can operate all Google services without opening a browser.
I use this every day to go from checking emails to calendar checks and sharing meeting minutes all within Claude Code. I think this is the most impressive skill for non-engineers.
4. frontend-design (Anthropic Official Skills) — Escape the 'Claude-like' UI Design
Part of Anthropic's official monorepo ⭐ 101,624
When you build UIs with Claude Code, they usually end up looking the same: blue headers, white backgrounds, rounded buttons. That "Made by Claude" feel.
Installing this skill expands the design repertoire. It brings professional frontend knowledge—color palettes, typography, spacing, and component design—into Claude Code.
The anthropics/skills repository contains multiple skills like frontend-design, webapp-testing, and canvas-design.
5. Understand-Anything — Visualize Your Codebase
⭐ 5,745
This skill converts your codebase into an interactive knowledge graph. If you ask it to "explain this project's structure," it will diagram dependencies and module configurations.
It's great for understanding existing code when joining a new project, drastically reducing onboarding time.
6. trailofbits/skills — Automate Security Audits
⭐ 3,862
This is a skill set released by the security firm Trail of Bits. It automates vulnerability detection, code audits, and security reviews.
From SQL injection and XSS to authentication holes and smart contract vulnerabilities. Just say "do a security check" after writing code in Claude Code, and it will identify issues.
Automating security reviews before going to production significantly lowers the accident rate.
7. playwright-skill — Delegate Browser Operations
⭐ 2,128
This skill enables Playwright usage from Claude Code for screenshots, form filling, E2E testing, and data collection.
"Take a screenshot of this site," "Fill out and submit this form," "Get the table data from this page." It can handle almost anything you can do in a browser.
I use it for article screenshots, creating event pages, and collecting competitor data.
8. mcp_excalidraw — Generate Diagrams with AI
⭐ 1,531
This skill allows you to generate, edit, and export Excalidraw diagrams from Claude Code. It works as both an MCP Server and a skill.
Architecture diagrams, flowcharts, ER diagrams. Just say "diagram this design," and an Excalidraw-format diagram appears. You no longer have to manually draw diagrams for documentation.
9. claude-health — Use This When Settings Go Wrong
⭐ 505
This skill diagnoses Claude Code settings (CLAUDE.md, settings.json, skill configurations) across 6 layers to identify problems.
It finds redundant settings, skill conflicts, and security holes that you might not notice yourself. The more skills you install, the more you need this.
10. humanizer-ja — Remove the 'AI Smell' from Japanese Text [Original Skill]
※ This is an original skill I ([@SuguruKun_ai](https://x.com/@SuguruKun_ai)) created.
This is a Japanese-specialized version of the humanizer introduced in point 3. English versions can't handle the specific "AI smell" unique to Japanese.
Repetitive phrases like "It is important to..." or "It can be said that...", overuse of words like "various" or "comprehensive," and excessive honorifics—these are all common in Japanese AI text.
humanizer-ja features detection rules specialized for Japanese. It checks and corrects style, conjunctions, and honorific levels. It also includes a vocabulary replacement dictionary to automatically convert terms like "utilize" to "use" or "solution" to "remedy."
Installation Order
If you're unsure, follow this order.
First, these two (for everyone):
- superpowers — Boosts output quality
- planning-with-files — Plan-to-implementation workflow
For those wanting to automate daily tasks:
- gogcli — Gmail, Calendar, Drive operations
- humanizer-ja — Remove AI smell from text (Japanese/Original)
For developers:
- frontend-design — UI design quality
- Understand-Anything — Codebase understanding
- trailofbits/skills — Security auditing
- playwright-skill — Browser automation
Maintenance & Visualization:
- mcp_excalidraw — Diagram generation
- claude-health — Settings diagnosis
Quick Preview for Next Time
Next, in the "Advanced Edition," I'll write about 10 skill combinations that yield powerful results. I plan to introduce "gstack" released by YC CEO Garry Tan, "marketing-skills" for full marketing automation, and "translate-book" for translating entire books.
The basic edition is just about installing individual skills. The advanced edition focuses on how to combine skills.
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